#pragma once


namespace SD_Tools
{
	class General
	{
	private:
	public:
	private:
	public:
		static void GetCurrentWorkingDir(wchar_t* Buffer, int MaxSize = 512);
		static void GetFullPath(HINSTANCE hInstance, wchar_t* Buffer, int MaxSize = 512);
		static void GetRealDir(HINSTANCE hInstance, wchar_t* Buffer, int MaxSize = 512);
		static DWORD CRC32(void* Data, int Size, DWORD InitValue = 0xFFFFFFFF, DWORD CRCPoly = 0xDEADBEEF);
		static DWORD CRC32F(void* Data, int Size);
		static DWORD SDHash32(void* Data, int Size);
		static DWORD SDHash32Fast(void* Data, int Size);
		static DWORD SDHash32Fast(void* Data, int Size, int KeyValues);
		static DWORD SDHash32Fast(void* Data, int Size, float Resolution);
		static DWORD SDHash32Const(void* Data, int Size, int KeyValues);
		static void CreateDebugConsole(HINSTANCE MyInstance, wchar_t* ConsoleTitle);
		static DWORD ARGBToABGR(DWORD ARGB);
		static void DisableAero();
		template<typename T> static DWORD GetMemberAddress(T Func);
	};

	//************************************
	// Method:    GetCurrentWorkingDir
	// Profit:	  Gets The Current Working Directory
	// FullName:  SD_Tools::General::GetCurrentWorkingDir
	// Returns:   void
	// Notes:
	// -Is just a wrapper for _wgetcwd
	// -The ending '\' is missing
	//************************************
	void General::GetCurrentWorkingDir( wchar_t* Buffer, int MaxSize /*= 512*/ )
	{
		_wgetcwd(Buffer, MaxSize);
	}

	//************************************
	// Method:    GetFullPath
	// Profit:	  Gets the Full-Path of the given hInstance
	// FullName:  SD_Tools::General::GetFullPath
	// Returns:   void
	// Notes:
	// -Is just a wrapper for GetModuleFileName
	//************************************
	void General::GetFullPath( HINSTANCE hInstance, wchar_t* Buffer, int MaxSize /*= 512*/ )
	{
		GetModuleFileName(hInstance, Buffer, MaxSize);
	}

	//************************************
	// Method:    GetRealDir
	// Profit:	  Gets the Directory of the given hInstance
	// FullName:  SD_Tools::General::GetRealDir
	// Returns:   void
	// Notes:
	// -The ending '\' is missing
	//************************************
	void General::GetRealDir( HINSTANCE hInstance, wchar_t* Buffer, int MaxSize /*= 512*/ )
	{
		DWORD dwLength = GetModuleFileName(hInstance, Buffer, MaxSize);
		if (dwLength)
		{
			while (dwLength && Buffer[dwLength] != '\\')
			{
				dwLength--;
			}
			if (dwLength)
			{
				Buffer[dwLength] = '\0';
			}
		}
	}

	//************************************
	// Method:    CRC32
	// Profit:	  Creates a 32bit CRC of the given Buffer
	// FullName:  SD_Tools::General::CRC32
	// Returns:   DWORD
	// Notes:
	// -SLOW - not optimized - use CRC32F or SDHash32 if runtime speed is important
	//************************************
	DWORD General::CRC32( void* Data, int Size, DWORD InitValue /*= 0xFFFFFFFF*/, DWORD CRCPoly /*= 0xDEADBEEF*/ )
	{
		DWORD Result = InitValue;
		for (int i = 0; i < Size; i++)
		{
			for (int j = 0; j < 8; j++)
			{
				if (((Result & (1<<31)) != 0) == ((((BYTE*)Data)[i] & (1<<j)) != 0))
				{
					Result = (Result << 1) ^ CRCPoly;
				}
				else
				{
					Result <<= 1;
				}
			}
		}
		return Result;
	}

	//************************************
	// Method:    CRC32F
	// Profit:	  Creates a 32 bit CRC of the given Buffer
	// FullName:  SD_Tools::General::CRC32F
	// Returns:   DWORD
	// Notes:
	// -Is Optimized
	//************************************
	DWORD General::CRC32F( void* Data, int Size )
	{
		static const unsigned long crctable[256] = 
		{
			0x00000000L, 0x77073096L, 0xEE0E612CL, 0x990951BAL,
			0x076DC419L, 0x706AF48FL, 0xE963A535L, 0x9E6495A3L,
			0x0EDB8832L, 0x79DCB8A4L, 0xE0D5E91EL, 0x97D2D988L,
			0x09B64C2BL, 0x7EB17CBDL, 0xE7B82D07L, 0x90BF1D91L,
			0x1DB71064L, 0x6AB020F2L, 0xF3B97148L, 0x84BE41DEL,
			0x1ADAD47DL, 0x6DDDE4EBL, 0xF4D4B551L, 0x83D385C7L,
			0x136C9856L, 0x646BA8C0L, 0xFD62F97AL, 0x8A65C9ECL,
			0x14015C4FL, 0x63066CD9L, 0xFA0F3D63L, 0x8D080DF5L,
			0x3B6E20C8L, 0x4C69105EL, 0xD56041E4L, 0xA2677172L,
			0x3C03E4D1L, 0x4B04D447L, 0xD20D85FDL, 0xA50AB56BL,
			0x35B5A8FAL, 0x42B2986CL, 0xDBBBC9D6L, 0xACBCF940L,
			0x32D86CE3L, 0x45DF5C75L, 0xDCD60DCFL, 0xABD13D59L,
			0x26D930ACL, 0x51DE003AL, 0xC8D75180L, 0xBFD06116L,
			0x21B4F4B5L, 0x56B3C423L, 0xCFBA9599L, 0xB8BDA50FL,
			0x2802B89EL, 0x5F058808L, 0xC60CD9B2L, 0xB10BE924L,
			0x2F6F7C87L, 0x58684C11L, 0xC1611DABL, 0xB6662D3DL,
			0x76DC4190L, 0x01DB7106L, 0x98D220BCL, 0xEFD5102AL,
			0x71B18589L, 0x06B6B51FL, 0x9FBFE4A5L, 0xE8B8D433L,
			0x7807C9A2L, 0x0F00F934L, 0x9609A88EL, 0xE10E9818L,
			0x7F6A0DBBL, 0x086D3D2DL, 0x91646C97L, 0xE6635C01L,
			0x6B6B51F4L, 0x1C6C6162L, 0x856530D8L, 0xF262004EL,
			0x6C0695EDL, 0x1B01A57BL, 0x8208F4C1L, 0xF50FC457L,
			0x65B0D9C6L, 0x12B7E950L, 0x8BBEB8EAL, 0xFCB9887CL,
			0x62DD1DDFL, 0x15DA2D49L, 0x8CD37CF3L, 0xFBD44C65L,
			0x4DB26158L, 0x3AB551CEL, 0xA3BC0074L, 0xD4BB30E2L,
			0x4ADFA541L, 0x3DD895D7L, 0xA4D1C46DL, 0xD3D6F4FBL,
			0x4369E96AL, 0x346ED9FCL, 0xAD678846L, 0xDA60B8D0L,
			0x44042D73L, 0x33031DE5L, 0xAA0A4C5FL, 0xDD0D7CC9L,
			0x5005713CL, 0x270241AAL, 0xBE0B1010L, 0xC90C2086L,
			0x5768B525L, 0x206F85B3L, 0xB966D409L, 0xCE61E49FL,
			0x5EDEF90EL, 0x29D9C998L, 0xB0D09822L, 0xC7D7A8B4L,
			0x59B33D17L, 0x2EB40D81L, 0xB7BD5C3BL, 0xC0BA6CADL,
			0xEDB88320L, 0x9ABFB3B6L, 0x03B6E20CL, 0x74B1D29AL,
			0xEAD54739L, 0x9DD277AFL, 0x04DB2615L, 0x73DC1683L,
			0xE3630B12L, 0x94643B84L, 0x0D6D6A3EL, 0x7A6A5AA8L,
			0xE40ECF0BL, 0x9309FF9DL, 0x0A00AE27L, 0x7D079EB1L,
			0xF00F9344L, 0x8708A3D2L, 0x1E01F268L, 0x6906C2FEL,
			0xF762575DL, 0x806567CBL, 0x196C3671L, 0x6E6B06E7L,
			0xFED41B76L, 0x89D32BE0L, 0x10DA7A5AL, 0x67DD4ACCL,
			0xF9B9DF6FL, 0x8EBEEFF9L, 0x17B7BE43L, 0x60B08ED5L,
			0xD6D6A3E8L, 0xA1D1937EL, 0x38D8C2C4L, 0x4FDFF252L,
			0xD1BB67F1L, 0xA6BC5767L, 0x3FB506DDL, 0x48B2364BL,
			0xD80D2BDAL, 0xAF0A1B4CL, 0x36034AF6L, 0x41047A60L,
			0xDF60EFC3L, 0xA867DF55L, 0x316E8EEFL, 0x4669BE79L,
			0xCB61B38CL, 0xBC66831AL, 0x256FD2A0L, 0x5268E236L,
			0xCC0C7795L, 0xBB0B4703L, 0x220216B9L, 0x5505262FL,
			0xC5BA3BBEL, 0xB2BD0B28L, 0x2BB45A92L, 0x5CB36A04L,
			0xC2D7FFA7L, 0xB5D0CF31L, 0x2CD99E8BL, 0x5BDEAE1DL,
			0x9B64C2B0L, 0xEC63F226L, 0x756AA39CL, 0x026D930AL,
			0x9C0906A9L, 0xEB0E363FL, 0x72076785L, 0x05005713L,
			0x95BF4A82L, 0xE2B87A14L, 0x7BB12BAEL, 0x0CB61B38L,
			0x92D28E9BL, 0xE5D5BE0DL, 0x7CDCEFB7L, 0x0BDBDF21L,
			0x86D3D2D4L, 0xF1D4E242L, 0x68DDB3F8L, 0x1FDA836EL,
			0x81BE16CDL, 0xF6B9265BL, 0x6FB077E1L, 0x18B74777L,
			0x88085AE6L, 0xFF0F6A70L, 0x66063BCAL, 0x11010B5CL,
			0x8F659EFFL, 0xF862AE69L, 0x616BFFD3L, 0x166CCF45L,
			0xA00AE278L, 0xD70DD2EEL, 0x4E048354L, 0x3903B3C2L,
			0xA7672661L, 0xD06016F7L, 0x4969474DL, 0x3E6E77DBL,
			0xAED16A4AL, 0xD9D65ADCL, 0x40DF0B66L, 0x37D83BF0L,
			0xA9BCAE53L, 0xDEBB9EC5L, 0x47B2CF7FL, 0x30B5FFE9L,
			0xBDBDF21CL, 0xCABAC28AL, 0x53B39330L, 0x24B4A3A6L,
			0xBAD03605L, 0xCDD70693L, 0x54DE5729L, 0x23D967BFL,
			0xB3667A2EL, 0xC4614AB8L, 0x5D681B02L, 0x2A6F2B94L,
			0xB40BBE37L, 0xC30C8EA1L, 0x5A05DF1BL, 0x2D02EF8DL
		};

		DWORD crc = 0xFFFFFFFF;

		BYTE* DataPtr = (BYTE*) Data;

		while (Size--)
		{
			crc = crctable[(crc ^ *DataPtr++) & 0xFFL] ^ (crc >> 8);
		}

		return crc ^ 0xFFFFFFFF;

	}

	//************************************
	// Method:    SDHash32
	// Profit:	  Creates a Hash of the given Buffer
	// FullName:  SD_Tools::General::SDHash32
	// Returns:   DWORD
	// Notes:
	// -Quite fast while good Results
	// -BufferSize should be atleast a 4
	//************************************
	DWORD General::SDHash32( void* Data, int Size )
	{
		//DWORD Result = 0x13371337;
		DWORD Result = 0;

		for (int i = 0; i < Size; i++)
		{
			Result = ((BYTE*)Data)[i] + (Result << 6) + (Result << 16) - Result;
		}
		//Result ^= Size;

		return Result;
	}

	//************************************
	// Method:    SDHash32Fast
	// Profit:	  Creates a Hash of the given Buffer
	// FullName:  SD_Tools::General::SDHash32Fast
	// Returns:   DWORD
	// Notes:
	// -Very fast
	// -however - skips 3 of 4 Bytes - should not be used to detect small changes - use SDHash32 instead
	//************************************
	DWORD General::SDHash32Fast( void* Data, int Size )
	{
		DWORD Result = 0x13371337;

		for (int i = 0; i < Size; i+=4)
		{
			Result = ((BYTE*)Data)[i] + (Result << 6) + (Result << 16) - Result;
		}
		Result ^= Size;

		return Result;
	}

	//************************************
	// Method:    SDHash32Fast
	// Profit:	  Creates a Hash of the given Buffer
	// FullName:  SD_Tools::General::SDHash32Fast
	// Returns:   DWORD
	// Notes:
	// -Very fast
	// -however - skips <KeyValues-1> of <KeyValues> Bytes - should not be used to detect small changes - use SDHash32 instead
	//************************************
	DWORD General::SDHash32Fast( void* Data, int Size, int KeyValues )
	{
		DWORD Result = 0x13371337;

		for (int i = 0; i < Size; i+=KeyValues)
		{
			Result = ((BYTE*)Data)[i] + (Result << 6) + (Result << 16) - Result;
		}
		Result ^= Size;

		return Result;
	}

	//************************************
	// Method:    SDHash32Fast
	// Profit:	  Creates a Hash of the given Buffer
	// FullName:  SD_Tools::General::SDHash32Fast
	// Returns:   DWORD
	// Notes:
	// -Very fast
	// -Resolution between 0.0f (fail) and 1.0f (same as SDHash32)
	// -however - only <Resolution>% of is hashed - should not be used to detect small changes - use SDHash32 instead
	//************************************
	DWORD General::SDHash32Fast( void* Data, int Size, float Resolution )
	{
		DWORD Result = 0x13371337;

		int KeyValues = (int) (1.0f/Resolution);

		for (int i = 0; i < Size; i+=KeyValues)
		{
			Result = ((BYTE*)Data)[i] + (Result << 6) + (Result << 16) - Result;
		}
		Result ^= Size;

		return Result;
	}

	//************************************
	// Method:    SDHash32Const
	// Profit:	  Creates a Hash of the given Buffer
	// FullName:  SD_Tools::General::SDHash32Const
	// Returns:   DWORD
	// Notes:
	// -Very Fast
	// -The Runtime of this Function is relative to <KeyValues> so if <KeyValues> is constant the Runtime is constant independent from the BufferSize
	// -However the Quality of the hash is relative to the size and the KeyValues.
	// -Exactly <KeyValues> Byte will be taken into the hash - you should get that 2 Keyvalues in a 10mb Buffer are not very reliable
	// -Make sure that (int) (Size/KeyValues) should be != 0 - otherwise the Hash will be 0x13371337 ^= Size
	//************************************
	DWORD General::SDHash32Const( void* Data, int Size, int KeyValues )
	{
		DWORD Result = 0x13371337;

		int StepSize = Size / KeyValues;
		if (StepSize)
		{
			for (int i = 0; i < Size; i+=StepSize)
			{
				Result = ((BYTE*)Data)[i] + (Result << 6) + (Result << 16) - Result;
			}
		}
		Result ^= Size;

		return Result;
	}

	//************************************
	// Method:    CreateDebugConsole
	// Profit:	  Creates a DebugConsole
	// FullName:  SD_Tools::General::CreateDebugConsole
	// Returns:   void
	// Notes:
	// -Creates a Console and attaches CONOUT to the console
	// -Prints a "Welcome SilverDeath" to the console - the string in this could be easily blacklisted by an anticheat... just sayin'
	//************************************
	void General::CreateDebugConsole( HINSTANCE MyInstance, wchar_t* ConsoleTitle = L"SilverDeaths Console")
	{
		AllocConsole();
		AttachConsole(GetProcessId(MyInstance));
		freopen("CONOUT$", "w", stdout);
		//freopen("CONOUT$", "wb", stdout);
		//freopen("CONOUT$", "wb", stderr);
		//freopen("CONIN$", "rb", stdin);
		SetConsoleTitle(ConsoleTitle);
		system("color 05");
		printf("\
-----------------------------\n\
-----------WELCOME-----------\n\
---------SilverDeath---------\n\
-----------------------------\n\n");
	}

	//************************************
	// Method:    ARGBToABGR
	// Profit:	  Converts a ARGB DWORD to an ABGR DWORD or vice versa
	// FullName:  SD_Tools::General::ARGBToABGR
	// Returns:   DWORD
	// Notes:
	// -None
	//************************************
	DWORD General::ARGBToABGR( DWORD ARGB )
	{
		return ((ARGB & 0xFF00FF00) | (ARGB & 0x00FF0000) >> 16 | (ARGB & 0x000000FF) << 16);
	}

	//************************************
	// Method:    DisableAero
	// Profit:	  Disables Aero
	// FullName:  SD_Tools::General::DisableAero
	// Returns:   void
	// Notes:
	// -None
	//************************************
	void General::DisableAero()
	{
		BOOL Enabled = false;
		DwmIsCompositionEnabled(&Enabled);
		if (Enabled)
		{
			DwmEnableComposition(0);
		}
	}

	//************************************
	// Method:    GetMemberAddress
	// Profit:	  Returns the Address of the given Memberfunction
	// FullName:  SD_Tools::General<T>::GetMemberAddress
	// Returns:   DWORD
	// Notes:
	// -None
	//************************************
	template<typename T> DWORD General::GetMemberAddress( T Func )
	{
		return *((DWORD*) &Func);
	}

};












